The tanh() function of the Math object accepts an angle (in radians) and returns its hyperbolic tangent value.
Its Syntax is as follows
Math.tanh(90)
<html>
<head>
<title>JavaScript Example</title>
</head>
<body>
<script type="text/javascript">
var result = Math.tanh(90);
document.write("Hyperbolic tangent value of the given angle: "+result);
</script>
</body>
</html>
Hyperbolic tangent value of the given angle: 1
